Greetings all, I am having a problem with the please close main door issue. I took this machine out of storage and the battery was dead so I replaced it like I have many many times before. This time when I attempted to clear the machine when it got to the point of saying close main door.... it never recognized I closed it. So I did the obvious, replaced the door optics.... nothing, replaced with yet another set of optics.... nothing. I ran out of door optics so I went ahead and did a bypass on them using a white switch......NOTHING. So time to order a mpu board, board came in, got all excited, had some tequila, moved the chips over, started a ram clear, got to the same point and the error still is there. Now I am kinda at a loss, I did notice a squeal from the power supply noticed that is I turned the machine off that it I didn't wait at least 15 seconds to turn it back on it was like it wasn't even plugged in, no power to anything. Could a faulty power supply possibly be the cause of my door open problem?